Emergency street-car brake.



Patented Ian. 15, 190i.

6. A. CART-EB. EMERGENCY STREET GAB BRAKE.

(Application flied 21, 1900.)

(No Model.)

DW L2 THE Norms PETERS ca. vuo'rouwou WASHINGTON. u. c.

NITED STATES PATENT ()FFICE.

GEORGE A. CARTER, OF PITTSBURG, PENNSYLVANIA.

EMERGENCY STREET-CAR BRAKE.

SPECIFICATION forming-part of Letters Patent No. 665,875. dated January15, 1961.

Application filed March 21, 1900- serial No. 9,591. (No model.)

To all whom it may concern.-

Be it known that I, GEORGE A. CARTER, a citizen of the United States ofAmerica, residing at No. 250 Sycamore street, Pittsburg, in the countyof Allegheny and State of Pennsylvania, have invented certain new anduseful Improvements in Emergency Street-Oar Brakes; and I do herebydeclare the following to be a full, clear, and exact descriptionthereof, reference being had to the accompanying drawings, which form apart of this specification.

My invention relates to an improved brake for street-railway cars; andit consists in an apparatus capable of stopping a car in case ofemergency, together with certain details of construction and combinationof parts, as will be fully described hereinafter.

In the accompanying drawings, Figure l is a side central sectionalelevation of a streetrailway car provided with an improvedemergency-brake which is constructed and arranged in accordance with myinvention. Fig. 2 is a plan view of the same.

In the accompanying drawings, 1 indicates the fioor of the car; 8, theside rails of the truck-frame, in which the axles 2 2 of the truck arejournaled. Loosely mounted on the axle 2 is a pair of brake dogs orshoes 4, and similarly mounted on the axle 2' is a pair of like dogs 4,both pairs of brake-dogs being provided with toothed or serrated lowerends 5 for engagement with the paving when the brake-dogs are dropped.These brake dogs or shoes carry each a bolt 5, having heads, andattached to each bolt, between the heads and the brake dogs or shoes,are chains 1O 10, the other ends of which are attached to bolts 5",carried in keepers 11 11, which are attached to I-beams 3, connected tothe side rails 3 of the truck-frame. The brake-dogs 4 4: carry staples'66, to which are attached the ends of the ropes or cables 7 7, the twostrands of each rope or cable passing over pulleys 7", suspended fromthe floor of the car, and over pulleys 8 8, the pulleys 8 being at oneend and the pulleys 8 at the other end. These ropes or cables 7 7 areoperated and controlled by means of hand-levers 9 9, the lower ends ofwhich are connected to the respective ropes or cables between the twopulleys 8 and the two pulleys 8, the levers being pivoted, as at 9",above the car-floor. It will be readily observed that by these two1evers the brake-dogs may be elevated to the position shown at the lefthand of Fig. 1 or dropped to the position shown at the righthand side ofthe same figure.

In operation should the motorman desire to instantly stop the car thelever 9 is thrown backward to the position shown at Fig. l, which willpermit the dog 4: to drop and the teeth 5 to engage with thestreet-paving,and as the said dog 4 is of a length sufficient to elevatethe rear wheels from the track the entire weight of the car is utilizedto check the momentum. The dogs are elevated by moving the lever in anopposite direction.

Various slight modifications and changes may be made in the generaldetails of construe tion without departing from the spirit of theinvention. Therefore I do not confine myself to the exact constructionshown and described.

Having thus described my invention, what I claim, and desire to secureby Letters Patout, is

1. Inan emergency-brake for street-cars, the combination with the truck,of a pair of brake dogs or shoes loosely mounted on each axle of thetruck, bolts carried by each of said brake dogs or shoes, a pair ofbeams carried by the truck, keepers carried by said beams, a pair ofchains connected to each keeper and to the bolts carried by the brakedogs or shoes, a pair of operating ropes or cables, one for each pair ofbrake dogs or shoes, the ends of one of said ropes or cables beingconnected to one pair of brake dogs or shoes and the ends of the otherrope or cable being connected to the other pair of brake dogs or shoes,and an operating-lever for each of said ropes or cables, substantiallyas shown and described.

2. In an emergency-brake for street-cars, the combination with the truckof a pair of brake dogs or shoes loosely mounted on each axle of thetruck, a pair of I-beams carried by the truck, a pair of chainsconnected to each brake dog or shoe and to the I-beams, a pair ofoperating ropes or cables, one for each pair of brake dogs or shoes, theends of one rope or cable connected to one pair of brake dogs or shoesand the ends of the other rope or cable connected to the other pair ofIn testimony whereof I have hereunto afbrake dogs or shoos, a series ofpulleys supfixed my signature in the presence of two sub- 10 ported fromthe car-body to receive said ropes scribing Witnesses.

or cables, and a pivoted operating-lever for each rope or cable wherebyone pair of brake GEORGE CAR dogs or shoes is operated and controlledin- Witnesses: dependently of the other pair, substantially M. E.HARRISON,

as shown and described.

JOHN GROETZINGER.

